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Epi > Orthobunyaviruses > Flashcards

Orthobunyaviruses Flashcards

1
Q

1) All Bunyaviruses are transmitted by mosquitoes

A

false

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2
Q

2) Bunyaviruses cause oral infection

A

false

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3
Q

3) The virus causing severe fever and thrombocytopenia syndrome is transmitted by tick

A

true

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4
Q

4) Several bunyaviruses are zoonotic agents

A

true

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5
Q

5) Serological cross-reactions are frequent between related bunyaviruses

A

true

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6
Q

6) All bunyaviruses are vectored by insects

A

false

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7
Q

7) All bunyaviruses are vectored by ticks

A

false

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8
Q

8) Orthobunyaviruses are transmitted by haematophagous arthropods

A

true

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9
Q

9) Several virus species belong to Bunyaviridae family, many present only in tropical regions

A

true

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10
Q

10) Bunyaviruses are typically arboviruses

A

true

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11
Q

11) Bunyaviriuses has good antigens and good immune reaction.

A

true

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12
Q

1) The Aino virus causes foetal development problems and abortion in sheep

A

true

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13
Q

1) Akabane virus is zoonotic

A

false

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14
Q

2) Akabane virus causes foetal damages in dogs

A

false

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15
Q

3) Akabane disease virus causes foetal damages in sheep

A

true

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16
Q

4) Abortions and foetal malformations are the most typical signs of Akabane disease

A

true

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17
Q

5) The Akabane disease is mainly seen in geese

A

false

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18
Q

6) The Akabane disease can cause abortion in sheep

A

true

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19
Q

7) The main symptoms of the akabane disease are foetal development disorders

A

true

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20
Q

8) The main symptoms of akabane disease are the malformation of the fetus.

A

true

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21
Q

9) Akabane, Aino and Schmallenberg viruses cause similar disease in ruminants.

A

true

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22
Q

10) Akabane occurs in South-West Africa and is a disease of swine.

A

false

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23
Q

1) Schmallenberg virus causes disease only in Suffolk sheep breed

A

false

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24
Q

2) Schallenberg virus causes foetal damages in humans

A

false

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25
Q

3) Schmallenberg virus causes foetal development problems more frequently in cattle than in sheep

A

true

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26
Q

4) Schmallenberg virus is present worldwide

A

false

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27
Q

5) Schmallenberg virus causes foetal damages in pigs

A

false

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28
Q

6) Schmallenberg virus causes foetal damages in sheep

A

true

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29
Q

7) Schmallenberg virius associated disease as 1st observed in 2011 in certain Western European countries

A

true

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30
Q

8) The Schmallenberg virus causes severe disease in humans

A

false

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31
Q

9) The acute signs of Schmallenberg virus infection in cattle are fever and reduced milk production

A

true

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32
Q

10) Rodents are the reservoir hosts of Schmallenberg virus

A

true

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33
Q

11) In cattle Schmallenberg virus causes transient febrile disease with reduced milk production.

A

true

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34
Q

12) The Schmallenberg virus is a zoonotic agent.

A

false

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35
Q

13) Ticks are reservoirs and vectors of the Schmallenberg virus

A

false

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36
Q

14) Schmallenberg virus was transported to Europe from South-America

A

false

37
Q

15) Schmallenberg virus emerged in Western Europe, in 2011, and spread rapidly in ruminants

A

true

38
Q

16) In sheep the Schmallenberg virus mainly causes foetal malformations

A

true

39
Q

17) Schmallenberg spread by midges vectors

A

true

40
Q

18) No human case report on Schmallenberg virus

A

true

41
Q

19) Pneumonia and abortion are the main signs of Schmallenberg virus infection in sheep

A

false

42
Q

20) Midges are the main vectors of Schmallenberg virus.

A

true

43
Q

1) Human is a competent host of Rift Valley fever virus i.e. the viraemic titre is high enough to infect the vector

A

true

44
Q

2) The Rift valley fever virus damages the blood vessels thus causes haemorrhages

A

true

45
Q

3) Wild rabbits are reservoirs of Rift valley fever virus

A

false

46
Q

4) Rift valley fever is a human only disease

A

false

47
Q

5) The rift valley fever virus causes foetal damages in sheep

A

false

48
Q

6) Certain European mosquito species are competent vectors of Rift Valley fever virus

A

true

49
Q

7) Rift Valley fever may cause high lethality in young ruminants

A

true

50
Q

8) Rift Valley fever virus is a zoonotic agent

A

true

51
Q

9) The Rift Valley fever virus can cause reproductive disorders in cattle and sheep

A

true

52
Q

10) Necrotic hepatitis is a lesion of Rift Valley fever

A

true

53
Q

11) Rift-valley fever caused human epidemics in Africa

A

true

54
Q

12) Rift Valley fever virus caused severe human outbreaks in Africa and in the Arab peninsula.

A

true

55
Q

13) The principle vectors of the rift valley disease are gnats

A

false

56
Q

14) Rift valley fever outbreaks are most frequently seen in horses

A

false

57
Q

15) Rift valley fever virus may cause 100% mortality in young susceptible animals

A

true

58
Q

16) In enzootic regions vaccines are used for the prevention of rift valley fever

A

true

59
Q

1) Nairobi sheep disease causes generalized infection in the animals

A

true

60
Q

2) Vaccines are available in endemic regions to prevent Nairobi sheep disease

A

true

61
Q

3) Nairobi sheep disease leads to abortion in the infected pregnant animals

A

true

62
Q

4) Nairobi sheep disease causes haemorrhagic enteritis in the infected animals

A

true

63
Q

5) Nairobi disease virus causes foetal damages in sheep

A

true

64
Q

6) The Nairobi sheep disease can cause abortion in sheep

A

true

65
Q

7) The most frequent sign of the Nairobi sheep disease is encephalitis

A

false

66
Q

8) Haemorrhagic gastroenteritis is a lesion of Nairobi sheep disease

A

true

67
Q

9) Nairobi sheep disease is zoonotic

A

true

68
Q

10) Nairobi sheep disease can cause haemorrhagic enteritis among sheep

A

true

69
Q

11) The most important symptom of the Nairobi sheep disease is nephritis.

A

false

70
Q

12) Nairobi disease occurs mainly in sheep

A

true

71
Q

13) The leading symptom of Nairobi disease is renal insufficiency

A

false

72
Q

14) The Nairobi sheep disease is vectored by ticks

A

true

73
Q

15) Nairobi sheep disease primarily causes pathological changes in the kidney (renal insufficiency).

A

false

74
Q

1) Small rodents serve as reservoir hosts of Hantaviruses

A

true

75
Q

2) Hantaviruses can cause renal failure in human

A

true

76
Q

3) Hantaviruses may cause respiratory disease in humans

A

true

77
Q

4) Hantaviruses causes haemorrhagic fever in humans

A

true

78
Q

5) Hantaviruses cause hemorrhagic fevers in rodents

A

false

79
Q

6) Hanta viruses can cause renal symptoms in humans

A

true

80
Q

7) Mainly rodents are the natural reservoir of hanta viruses

A

true

81
Q

8) Hanta viruses are naturally maintained by rodents

A

true

82
Q

9) In domestic animals Hanta viruses typically cause liver dystrophy

A

false

83
Q

10) Hanta virus infected people may develop severe renal failure

A

true

84
Q

11) Rodents are reservoir for Hanta virus

A

true

85
Q

12) Hanta virus cause renal disorders in humans

A

true

86
Q

13) Hanta viruses cause encephalitis in horses

A

false

87
Q

1) The Crimean-congo haemorrhagic fever is a human disease with headache, muscle pain and skin haemorrhages

A

true

88
Q

2) Crimean-Congo Haemorrhagic fever virus is tick born

A

true

Epi (74 decks)

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